Univariate model | |||
HR | 95% CI | P value | |
Age | 1.02 | 0.98 to 1.05 | 0.54 |
Male, % | 0.41 | 0.01 to 9.17 | 0.25 |
Disease duration | 0.99 | 0.99 to 1.01 | 0.75 |
HR, bpm | 1.00 | 0.97 to 1.04 | 0.87 |
Systolic BP, mm Hg | 0.99 | 0.98 to 1.02 | 0.72 |
SpO2, % | 0.93 | 0.73 to 1.19 | 0.57 |
Rest echocardiographic variables | |||
LVEF, % | 1.01 | 0.95 to 1.07 | 0.86 |
LAVi, mL/m2 | 1.01 | 0.97 to 1.05 | 0.73 |
E/e' | 1.09 | 1.01 to 1.19 | 0.04 |
GLS | 0.88 | 0.71 to 1.10 | 0.26 |
RVLS | 0.97 | 0.87 to 1.09 | 0.67 |
Exercise haemodynamics | |||
mPAP, mm Hg | 1.09 | 0.95 to 1.26 | 0.22 |
mPAWP, mm Hg | 1.07 | 1.00 to 1.15 | 0.04 |
CO, L/min | 1.14 | 0.84 to 1.55 | 0.41 |
Exercise mPAP, mm Hg | 1.06 | 1.00 to 1.13 | 0.07 |
Exercise mPAWP, mm Hg | 1.08 | 1.02 to 1.15 | 0.012 |
Exercise CO, L/min | 0.84 | 0.66 to 1.06 | 0.14 |
ΔmPAWP | 1.27 | 1.01 to 1.61 | 0.049 |
ΔCO | 0.58 | 0.38 to 0.87 | 0.009 |
ΔmPAP/ΔCO, mm Hg/L/min | 1.06 | 1.02 to 1.10 | 0.002 |
ΔmPAWP/ΔCO, mm Hg/L/min | 1.38 | 1.17 to 1.63 | <0.001 |
Δe’, cm/s | 0.95 | 0.84 to 1.07 | 0.38 |
BP, blood pressure; CO, cardiac output; %DLCO, diffusing capacity for carbon monoxide; e’, early diastolic mitral annular motion; E, early diastolic transmitral flow velocity; %FEV1, percent forced expiratory volume in 1 s; %FVC, percent forced vital capacity; HR, heart rate; LAVi, left atrial volume index; LVEDVi, left ventricular end-diastolic volume index; LVEF, left ventricular ejection fraction; LVESVi, left ventricular end-systolic volume index; LVMi, left ventricular mass index; MCTD, mixed connective tissue disease; mPAP, mean pulmonary artery pressure; mPAWP, mean pulmonary artery wedge pressure; PVR, pulmonary vascular resistance; RVEA, right ventricular end-diastolic area; RVESA, right ventricular end-systolic area; RVFAC, right ventricular functional area change; SpO2, percutaneous oxygen saturation; SSc, systemic sclerosis; TAPSE, tricuspid annular plane systolic excursion.